I don’t get the question what course are you talking about
Bonds are loans to a company or government for a set amount of time they earn interest and are considered low risk investments.
Bonds are investments that have a fixed interest rate and a fixed amount of time which it will be repayed. Bonds are created when a company or government wants to finance something using investors instead of a bank. Bonds are more dependable and lower risk than stocks.
B because there is no way to separate that sentence into two different sentences without one sentence being incorrect
Answer: C. The author is defining a black hole.
Explanation: A black hole is a region of spacetime where gravity is so strong that nothing particles and even electromagnetic radiation such as light can escape from it.